Comparison of Energy Extraction Circuits for Bistable Piezoelectric Energy Harvesters

Quentin Demouron (1) , Adrien Morel (1) , David Gibus (1) , Aya Benhemou (1) , Adrien Badel (1)

1 SYMME - Laboratoire SYstèmes et Matériaux pour la MEcatronique

The present work focuses on ambient vibrations energy harvesting. Specifically, this article deals with bistable piezoelectric energy harvester. In order to rectify the piezoelectric voltage and to supply power to autonomous sensors, these systems require an energy extraction circuit. As an interesting feature, energy extraction circuits allow to increase the harvested power and bandwidth of piezoelectric energy harvester. However, depending on the energy extraction circuit, the performance gain and the useful voltage and frequency range can be limited. The present work compares the performances of various energy extraction circuits, depending on the supply voltage and the operation frequency. Such analysis reveals that a hybrid energy extraction circuit combining features of existing circuits could be particularly relevant for bistable piezoelectric energy harvesters.

Mots clés: Piezoelectric energy harvester; Nonlinear systems; Vibrations; Harvesting circuit; Power management

Domaines: Energie électrique; Vibrations [physics.class-ph]; Electronique

Quentin Demouron, Adrien Morel, David Gibus, Aya Benhemou, Adrien Badel. Comparison of Energy Extraction Circuits for Bistable Piezoelectric Energy Harvesters. JNRSE 2023 (Journées Nationales sur la Récupération et le Stockage de l’Energie 2023)), Jun 2023, Paris, France. ⟨hal-04199572⟩